Cyclization processes in the fragmentation of the molecular ions of N-(aza-9-fluorenylidene)amines

The dissociative ionization of 17 Schiff bases obtained from 2(4)-azafluorenones and linear benzo-1,4-diazafluorenone was investigated. The intensities of the [M-H]+ and [M-CH3]1 ion peaks depend on the structures of the ketone and imine parts of the molecules and are determined by the possibility of the occurrence of cyclization processes with the participation of their structural elements. The fragmentation of the investigated azomethines is also accompanied by the elimination of an NR particle and a hydrocarbon R radical by the molecular ions. This process takes place most easily when a cyclohexyl substituent is present in the imine fragment. In contrast to previously investigated azomethines, the loss of an HCN molecule by the M+ ion occurs without participation of the exocyclic nitrogen atom. © 1981 Plenum Publishing Corporation.

Редакторы
-
Издательство
Латвийский институт органического синтеза Латвийской академии наук / Springer New York Consultants Bureau
Номер выпуска
1
Язык
Английский
Страницы
83-89
Статус
Опубликовано
Подразделение
-
Номер
-
Том
17
Год
1981
Организации
  • 1 Patrice Lumumba People's Friendship University, Moscow, 117923, Russian Federation
Ключевые слова
-
Дата создания
19.10.2018
Дата изменения
19.10.2018
Постоянная ссылка
https://repository.rudn.ru/ru/records/article/record/1511/